<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 图片 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- form表单 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules"
        class="login_form" label-width="80px">
        <el-form-item label="用户名" prop="username">
          <el-input prefix-icon="iconfont icon-users"
            v-model="loginForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input prefix-icon="iconfont icon-3702mima" type="password"
            v-model="loginForm.password"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="danger" @click="resetForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 表单重置
    resetForm () {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    // 登录
    login () {
      // 对表单进行验证
      this.$refs.loginFormRef.validate(async valid => {
        // console.log(valid)
        if(!valid) return 
        // 验证通过 发送请求
        const {data: res} = await this.$http.post('login',this.loginForm)
        console.log(res)
        if(res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 保存token
        window.sessionStorage.setItem('token',res.data.token)
        // 跳转到主页面
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang='less' scoped>
.login_container {
  height: 100%;
  background-color: #2b4b6b;
  position: relative;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 5px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  width: 130px;
  height: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  box-shadow: 0 0 10px #ddd;
  padding: 10px;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>